Gudgeon



C. C. HARRIS.

GUDGEON.

APPLICATlON FILED N0v.10. $919.

LSYQJGQO Patented May 31,1921.

UITED earnr caries.

CARL CHESTER HARRIS, OF ORANGE, MASSACHUSETTS, ASSIGNOR T0 RODNEY HUNT MACHINE COMPANY, OF ORANGE, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS.

GUDGEON.

Application filed November 10, 1919.

, are inuse. There is also a tendency of the shaft thereof to work loose.

The principal object of this invention is to provide a gudgeon which will be locked against working loose and will not only stay in place itself but will firmly hold in in place the ring that is usually employed to surround the gudgeon and hold the wood together, thus eliminating all chance of this ring working loose which it sometimes does in the ordinary construction.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying? drawings, in whichigurel is an end view of a roll with a preferred form of this invention applied thereto;

Fig. 2 is a central sectional View on the line 22 of Fig. 1;

Fig.3 is a perspective view of the gudgeon removed from the roll;

Fig. 4 is a view similar to Fig. 1 showa modification, and ig. 5 is an elevation of one end of the same roll.

In making a wooden roll for the purposes described, it has been the practice heretofore to slot out the end of a wooden log from which the roll is to be made and then drive the gudgeon in. After the gudgeon and shaft are secured in position a wrought iron ring is driven in over the outer surface of the gudgeon and then small metal or wooden wedges are driven in which expand the wood to make a tight fit. As the key which secures the gudgeon to the shaft is exactly parallel to the wings of the gudgeon there is nothing but friction to prevent the parts working loose. This invention Specification of Letters Patent.

Patented May 31, 1921.

Serial No. 336,951.

is designed to provide a method of locking the parts so that they cannot be loosened in ordinary usage.

Referring to the drawings the roll 10 is of the ordinary type except that the recesses which are chiseled into its end, instead of being exactly longitudinal, are twisted to the shape necessary for receiving the wings of the gudgeon as I will describe below and preferably they are tapered so that the outer surfaces at the ends of the wings will. be of a general conical shape.

The gudgeon itself consists of a cylindrlcal center 11 having a cylindrical passage 12 through it fitting tight on the shaft 13 and provided with a keyway at 1-1. This center has a series of integral radiating wlngs 15, four being shown, and it is the shape of these wings that constitutes one of the principal features of this invention. Instead of being made perfectly flat and longitudinal they are warped or twisted so as to have the general shape of a propeller blade of the screw type, although the angle is very slight. Their inner ends at 16 are also given a conical shape when all of them are considered in the aggregate. In other words, the distance across from the extreme end of one wing to the extreme end of the opposite one, is greater at the outer surface than it is at the inner surface or the surface that is to be driven into the bottom of the recess in the end of the roll.

I have also shown another feature which consists of a projection 18 on the outer end of each wing. Instead of keeping the wrought iron ring 20 and driving it in over the gudgeon after that has been introduced I place that on the gudgeon first, then drive in the gudgeon. In entering the roll the gudgeon will turn through a small part of a revolution on account of the shape of the wings and recesses, and for that reason the keyway 14: is formed that much offset from the position which it is intended to occupy finally. When the gudgeon is driven home with its outside end flush with the end of the roll the key slot is in line with the key slot in the shaft.

In this way it will be seen that when the key is driven in, the gudgeon becomes more securely locked than the usual construction,

and there is no possibility of its being dislodged in-astraight or axial direction on account of the twisted form of the wings. The key prevents the gudgeon from revolving evenslightly so that there is, under ordinary circumstances, no chance of its com-.

ing out. This makes a more substantial connection between the wooden roll and the shaft to resist the force that comes upon the gudgeon when the roll shafts are driven by gearing as is usual.

Furthermore the driving in of the gudgeon with the ring upon it is an important feature because in the old constructions rings, which sometimes were not as wide as the gudgeons, would come out and lag screws with washers had to be inserted to hold them in. By this construction, how

ever, it is impossible for the ring to come off and I may remark here that even without the projections 18 the conical shape above mentioned is usually enough'to prevent the ring from being dislodged.

I have shown in Fig. 1 a series of wedges 22 used in the usual way to wedge the wood against the wings and ring.

In the form shown in Figs. 4 and 5 the same warped or twisted shape of the wings is retained, but the ring 20 is replaced by enlarging the ends of the wings at 24;. In this way a sort of dove-tail effect on the ends of the wings is secured, so that when the wedges 22 are driven in the woodexpands and is somewhat locked in position-against the inner shoulders of these enlargements 24:.

These enlargements are made cylindrical tions can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore I do. not wish to be limited to all the details of construction.

herein shown and described, but what I do claim is:-

1. As an article of manufacture, a gudgeon having angularly disposed wings for turning the gudgeon as it is driven intothe end of a roll.

2. As an article of manufacture, a gudgeon having twisted wings and a straight key way parallel with the axis for attach ment to a shaft.

3. As an article of manufacture, a" roll gudgeon having twisted wings and means at the ends of the wings for holding the i wood against expansion.

at. As an article of manufacture, a gudgeon having twisted wings having ,a general conical shape on their outside surfaces.

5. As an article of manufacture, a gudgeon having wings disposed at an angle to the axis, and having means thereon for preventing the dislodgment of a holding ring or the like.

6. A gudgeon having wings radially longe'r at its outer end than at its inner end;

7. The combination with a wooden r011 having a central'recess in itsend, provided with radial twisted recesses, of a gudgeon having twisted wlngs driven into sa1d tw1st-' ed recesses, whereby the gudgeon isturned" as it is inserted.

8. The combination with a Wooden roll having a central recess in its end, provided with radial twisted recesses, of a gudgeon having twisted wings driven into said twisted recesses, said wings being longer at their outer than at their inner ends, and a ring located on the wings, the inside diameterof;

the ring being less than the combined distance across two opposite wings at their larger end. 7

In testimony whereof I have hereunto affixed my signature.

CARL CHESTER HARRIS. 

